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Hard Starting and Rough Idle

C

chatt230

Member
Messages
12
Reaction score
5
Points
22
Boat Make
Yamaha
Year
2008
Boat Model
AR
Boat Length
23
My boat is hard starting and idling rough on the starboard engine. The port engine is turning over but very hard starting. Any ideas what the issue could be? Spark plugs?

It’s a 2008 AR230 with twin HO MR-1s.
 
Scottintexas

Scottintexas

Jetboaters Admiral
Staff member
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Location
Corinth, TX (DFW)
Boat Make
Yamaha
Year
2007
Boat Model
AR
Boat Length
23
How old is your gas?
How full is your tank?
 
itsdgm

itsdgm

Jetboaters Admiral
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Location
Rancho Santa Margarita, California
Boat Make
Yamaha
Year
2007
Boat Model
AR
Boat Length
21
Spark plugs.
 
FSH 210 Sport

FSH 210 Sport

Jetboaters Admiral
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Location
Tranquility Base
Boat Make
Yamaha
Year
2020
Boat Model
FSH Sport
Boat Length
21
Have you ever run any injector cleaner through it? If not pick up some Techron marine fuel system injector cleaner and run through it. I try to do that at least twice a season.
 
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